Sequence-specific DNA-binding protein that interacts with inducible viral and cellular enhancer elements to regulate transcription of selected genes. AP-2 factors bind to the consensus sequence 5'-GCCNNNGGC-3' and activate genes involved in a large spectrum of important biological functions including proper eye, face, body wall, limb and neural tube development. They also suppress a number of genes including MCAM/MUC18, C/EBP alpha and MYC. AP-2-beta appears to be required for normal face and limb development and for proper terminal differentiation and function of renal tubular epithelia. Binds DNA as a dimer. Can form homodimers or heterodimers with other AP-2 family members. Interacts with CITED4. Interacts with UBE2I. Interacts with KCTD1; this interaction represses transcription activation. Interacts with CITED2 (via C-terminus); the interaction stimulates TFAP2B-transcriptional activity. Belongs to the AP-2 family. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Molecular Function: caspase inhibitor activity; DNA binding; protein binding; protein dimerization activity; protein heterodimerization activity; protein homodimerization activity; sequence-specific DNA binding; transcription coactivator activity; transcription corepressor activity; transcription factor activity
Biological Process: calcium ion homeostasis; fat cell differentiation; forelimb morphogenesis; glucose homeostasis; glucose metabolic process; hindlimb morphogenesis; kidney development; negative regulation of apoptosis; negative regulation of caspase activity; negative regulation of cell proliferation; negative regulation of transcription from RNA polymerase II promoter; negative regulation of transcription, DNA-dependent; phosphate ion homeostasis; positive regulation of cell proliferation; positive regulation of neuron apoptosis; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; potassium ion homeostasis; regulation of BMP signaling pathway; regulation of cell differentiation; regulation of insulin secretion; regulation of transcription, DNA-dependent; renal water homeostasis; sodium ion homeostasis; sympathetic nervous system development